The ferns (Filicales) treated comparatively with a view to their natural classification

Bower, F. O.

doi:10.5962/bhl.title.26129

Cited by 38 publications

(63 citation statements)

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“…Bower (1926) recognizes 78 species in this family while Clausen (1938) reduces them to 50. The three genera are typically of the eusporangiate type and combine several points of interest in cytology, phylogeny and evolution.…”

Section: Introductionmentioning

confidence: 99%

Studies on the Cytology and Phylogeny of the Pteridophytes

Ninan¹

1958

CYTOLOGIA

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Section: Introductionmentioning

confidence: 99%

Studies on the Cytology and Phylogeny of the Pteridophytes

Ninan¹

1958

CYTOLOGIA

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“…1). These plants, characterized by the presence of silica bodies (Sundue, 2009) but a lack of sclerenchyma (Bower 1928;Ruhfel & al., 2008), were long regarded as composing a distinct family-Vittariaceae (Ching, 1940;Tryon & Tryon, 1982;Kramer, 1990). However, phylogenetic analyses have demonstrated that these ferns nest well within the Pteridaceae Hasebe & al., 1995;Prado & al., 2007;Schuettpelz & al., 2007), as sister to the genus Adiantum L. (Lu & al., 2012;Rothfels & Schuettpelz, 2014;Pryer & al., 2016).…”

Section: Introductionmentioning

confidence: 99%

A revised generic classification of vittarioid ferns (Pteridaceae) based on molecular, micromorphological, and geographic data

Schuettpelz

Chen

Kessler

et al. 2016

TAXON

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“…Vertical vascular commissures connect the two sets of veins here and there. Contrary to the special veins found in other Lomariopsidaceae, which run mostly parallel to the 'normal' veins above (appearing like a mirror image of the latter), those of B. subsimplex spread irregularly as in Christiopteris tricuspis (Bower, 1928). Also, these special veinlets are more numerous than the 'normal' veins above, though more slender.…”

Section: Bolbitismentioning

confidence: 62%

“…Most pteridologists consider them to be probably of aspidiaceous affinity: Christensen (1938) and Ching (1940) regard them as acrostichoid derivatives of the Dryopteroid ferns; Bower (1928) postulates affinity to the Thelypteridioid group, and Copeland (1947) to the Polystichioid group. Holttum (1947) suggests a derivation of the family from the Dennstaedtioid stock along with the Davalliaceae.…”

Section: Discussionmentioning

confidence: 99%

Morphology of the Fertile Leaves of the Lomariopsidaceae, With Special Reference to the Venation

Nayar

1966

New Phytologist

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SUMMARYFertile pinnae of thirty-one species of the eight genera of Lomariopsidaceae studied have the lamina variously reduced, in some cases to narrow wings on either side of the midrib. The lamina is either broad, thin, and with the venation conspicuous on the surface, or narrow, fleshy, and with hidden venation. The mesophyll is undifferentiated and consists of thin-walled parenchyma which possesses collapsible walls in some species. Intercellular air spaces are inconspicuous in most species. The epidermal cells are usually thin-walled, chlorophyllous and dorsiventrally flattened. The midrib has two or three vascular strands which unite into one in the anterior half of the lamina. Distinct sclerenchyma tissue is absent: a few layers of thickwalled hypodermal cells occur in the midrib region in some.Venation of the fertile pinna is almost similar to that of the sterile pinnae in Bolbitis and Lomagramma (both reticulate), and in Egenolfia, Elaphoglossum and Thysanosoria (all freeveined). The fertile pinnae of Arthrobotrya, Lomariopsis and Teratophyllum usually possess a reticulate venation, though the sterile pinnae are free-veined. A set of special veins supplying the sporangia is found in addition to the 'normal' venation in many species except Elaphoglossum and Thysanosoria. The special v^enation is variously developed in the different species of each genus; it consists of a set of veins close to the lower epidermis of the lamina and connected to the 'normal' veins at intervals: in some cases the special veins form extensive reticulations independent of the 'normal' venation. The two sets of veins are at different planes, one above the other. The special venation is not connected directly to the midrib and often has a longitudinal vein running parallel to the midrib on either side.In all genera, except Thysanosoria which has discrete sori restricted to the vein tips, sporangia are acrostichoid in distribution. They are of the common leptosporangiate type. The sporangial stalk is slender and long in all, except Lomagramma and Lomariopsis in which it is short and stout. The stalk is three cells thick, the third row developed secondarily as a protrusion of the basal wall cell of the capsule in continuation of the stomium. Distinct paraphyses are absent, except in Arthrobotrya, Lomagramma and Teratophyllum.The spores are bilateral, monolete and ranging in size from 22 x 33 ^ {Bolbitis spp., Elaphoglossum spp.) to 90 X 125 11 {Lomariopsis intermedia). The exine is smooth except in Lomagramma, Thysanosoria (both granulose) and Lomariopsis spp. (spinulose). Lomagramma and Thysanosoria are perine-less; all others are perinate, with the perine bearing characteristic reticulate ornamentation in all except Bolbitis and Elaphoglossum.

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The ferns (Filicales) treated comparatively with a view to their natural classification

Cited by 38 publications

References 0 publications

Studies on the Cytology and Phylogeny of the Pteridophytes

Studies on the Cytology and Phylogeny of the Pteridophytes

A revised generic classification of vittarioid ferns (Pteridaceae) based on molecular, micromorphological, and geographic data

Morphology of the Fertile Leaves of the Lomariopsidaceae, With Special Reference to the Venation

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